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Łazik Curiosity bada planetę Mars
Poziom:
Temat: Nauka i technologia
(Image Source: NASA)
BY CHARLES MCKEAGUE
ANCHOR NATHAN BYRNE
Mars is getting a buddy. A rover dubbed “Curiosity”
is expected to reach the surface on Monday.
Scientists say this is as high-tech as it
gets. They say Curiosity will attempt the
most harrowing landing ever on the Martian
surface. The rover will try to land inside
the Gale Crater — located on the equator,
right beside a 6 km high mountain. (Images:
NASA)
A NASA administrator explains to CNN why the
rover is headed for the crater.
“If you can imagine going into the Grand
Canyon where we can look at the history of
earth really in that area as we look at various
strata. That's what landing in the crater
allows us to do. It will look across the history
of the planet Mars in the two years it's there.”
If NASA’s $2.5 billion project succeeds
it will have to make it through what scientists
call the “seven minutes of terror.”
“We’ve got literally seven minutes to
get from the top of the atmosphere to the
surface of Mars, going from 13,000 mph to
zero in perfect sequence, perfect choreography,
perfect timing and the computer has to do
it all by itself. And if any one thing doesn’t
work just right it’s game over.” (Video:
NASA)
Once it passes through the atmosphere, a 100-pound
supersonic parachute will be deployed to help
slow it down. NASA says this the strongest
parachute it’s ever built.
Then it will lose the parachute — and ignite
rocket boosters. As it hovers toward the ground
long cables will carry the rover to the ground
— until landing. Then the gadgets come into
play.
Once it gets to the ground, Computerworld
says the craft will be equipped with more
gear than any other rover to reach Mars.
“Curiosity has the most advanced payload
of scientific gear ever used on the surface
of Mars, including chemistry instruments,
environmental sensors and radiation monitors.
The payload is more than 10 times as massive
as those of earlier Mars rovers.”
If you would like to follow the landing live
— check out the times in your area.
